Baking apparatus.



O. C. NUUBSON.

BAKING APPARATUS.

APPLICATION FILED JUNE 5,1911.

Patented July 2, 1912.

2 SHEETSSHEBT 1.

INVENTOR WITNESSES O. G. NUUBSON.

BAKING APPARATUS.

APPLICATION FILED JUNE 5,1911.

Patented July 2, 1912.

2 SHBETSSHEET 2.

77 aw/W OLE C: NUU'BSON, 0E DULUTH, MINNESOTA.

BAKING APPARATUS. I

Specification of Letters Patent.

Patented July 2, 1912.

Application filed June 5,1911. Serial No. 631,460.

To all whom it may concern:

Be it known that I, OLE C. NUUnsoN, a subject of Norway, residing inDuluth, in the county of St. Louis and State of Minnesota, have inventedcertain new and useful Improvements in Baking Apparatus; and I do herebydeclare the following is a full, clear, and exact description of theinvention, such as will enable others skilled in the art to make and usethe same.

My invention relates to bread baking apparatus and has for, its objectthe provision of a simple and cheap apparatus for baking crisp waferbread.

It consists in the constructions, combinations and arrangements of partshereinafter described and claimed.

In the drawings, Figure 1, is a perspeo tive view of my invention,partly broken away. Fig. 2 is a central vertical transverse view of anupper baking plate forming part of said invention, and Fig. 3 is acentral verti ca] transverse view of a lower baking plate forming partof said invention.

In the drawings, 1 is a stationary frame, of any suitable construction,'upon which is mounted a lower baking plate 2, provided with acorrugated upper surface, in which plate are preferably formed channels2* intersecting the corrugations therein and with channels 2"runningparallel with the corrugations, which channels are for thepurpose of conveying away steam generated in the dough while baking, andfor the further purpose. of making the surface of the plate and thedough thereon into a plurality of squares. Supported on said frame andextending beneath said lower plate, are a plurality of heating elementsof any suitable character or construction, as gas pipes having upwardlydirected ports 3* adapted to direct the gas toward the bottom of saidlower plate. Said lower plate is also preferably provided with suitableribs 2 upon its lower side to prevent. warping and to strengthen theplate. Suspended by any suitable means above said lower plate, as by asprocket chain 4, running over sprocket pulleys 4 and 4- mounted onshafts 4 and 4 supported on said frame, is an upper bak ing plate 5,provided with a corrugated lower surface, in which is preferably formedchannels (not shown, but similar to channels 2) intersecting saidcorrugations and with channels '5 running parallel to said corrugations,which channels are for the counter weight 9.

purpose of conveying away steam generated in the dough while baking, andfor the further purpose of marking the corrugated surface of said upperplate into squares. The upper surface of said upper plate is preferablyprovided with strengthening ribs 5.

'Said channels in said upper plate preferably register with the channelsin said lower plate. Mounted upon said upper plate and extending overthe same are a plurality of heating elements of any suitable characteror construction, as gas pipes 6 having downwardly directed ports 6adapted to direct the burning gas toward the upper surface of said upperplate. Mounted on said upper plate and spaced therefrom and extendingover said heating elements thereon is a cover sheet 7 of any suitableconstruction, preferably eonstructed of heat insulating material asasbestos. Formed in said upper plate and preferably intersecting saidchannels therein are a plurality of steam exhaustports 4F, and mountedupon said plate and extending .through said cover sheet are a pluralityof nipples 8- having ports 8 formed therein registering with said ports4 through which steam generated in the dough while baking may escape.Upon the free end of said sprocket chain is preferably suspended a Guiderods 10 are pref erably mounted on said upper plate and extend throughguides 1 forming part of said frame upon the ends of said shafts 4 and4- are mounted gears 10 and 11 respectively for rotating said shafts,when it is desired to lower or raise said upper plate, and intermediateof said gears and engaged therewith is a pinion 12 for turning saidgears, said pinion being preferably provided with a crank handle l2whereby it. may be retated.

In operation, the baking plates are first heated and the dough havingbeen rolled out into a thin layer is then spread or laid upon thelower-baking plate, the upper baking plate is then lowered on to thedough and by giving the pinion and gears an extra turn in the properdirection the counter weight may be lifted so as to permit the fullweight of the upper baking plate and of the parts mounted thereon torest upon the dough, thereby squeezing the dough into the de pressionsof the corrugated surfaces and pressing it into a very thin paper-likewafer, in which form it bakes quickly and crisply. The upper plate isthen lifted and the waferbread product is removed in sections of regularsize for packing and marketing.

WVhile I have described one form of my invention, it is obvious thatsuch form and construction may be modified in various details within thespirit and scope of the claim.

What I claim v In a baking apparatus, the combination with a suitablesupport of a lower baking plate, an upper baking plate, a cover sheetextending over said upper plate and spaced therefrom, said upper platehaving steam exhaust ports extending therethrough, nipples mounted uponsaid upper plate and ex- 15 tending through said cover sheet, saidnipples having steam exhaust passages formed therein communicating withthe steam exhaust passages in said upper plate and OLE C. NUUBSON.

Witnesses:

JAMES VVA'rsoN, H. G. (lnARHART.

